We report a case of a 77-year-old woman with endometrial tuberculosis who had to abnormal changes in cervical or endocervical cytology. Endometrial cytological findings showed a number of epithelioid cell clusters with a few Langhans giant cells. A histological examination of the endometrium indicated chronic granulomatous inflammatory disease involving epithelioid cells, Langhans giant cellsand lymphocytes suggestive of tuberculosis. Culture and mycobacterium tuberculosis DNA tests (PCR assay) were positive. Endometrial cytology is thus a useful tool for diagnosing endometrial tuberculosis.